The Epson W16SK Stacked 3D projector system is the only turnkey passive 3D glasses solution for schools. One can cobble together others, but they would tend to cost far more, require multiple company’s components, and likely be a support nightmare. Not so the W16SK. Although the pair of projectors and mount combined to cost about double what competing individual DLP projectors (with other than 3D, similar features), the long term savings due to inexpensive 3D glasses, due to loss, theft and breakage, pretty much guarantees that in the long run the W16SK will cost far less, and will require less attention. As an added bonus, it’s going to be at least twice as bright as typical 3D DLP projectors, which solves a major problem (brightness) when talking 3D in the classroom. It is unique solution that makes a lot of sense. The W16SK is back for another year (or two).